After landing on July 21, 1944, roughly 55,000 American troops fought through jungle and fortified ridgelines to reclaim Guam, a US territory seized by Japan in 1941. Organized resistance collapsed by August 10, though isolated Japanese holdouts remained hidden in the island's interior for years, including Sergeant Shoichi Yokoi, who did not surrender until 1972. The recapture gave the US a crucial airbase for B-29 bombers targeting Japan.
Guam's recapture carried symbolic weight beyond its military value: it was the first US territory liberated from Japanese occupation, and its 20,000 Chamorro residents had endured brutal forced labor, massacres, and internment during the 31-month occupation. American troops discovered evidence of atrocities that hardened resolve in the Pacific campaign.
The fighting itself was grueling. Japanese defenders, entrenched on Mount Tenjo and Mount Santa Rosa, fought with the same no-surrender tenacity seen elsewhere in the Pacific, forcing Marines and Army infantry into brutal ridge-by-ridge combat under tropical heat and constant mosquito swarms.
Perhaps the most remarkable postscript belongs to Yokoi, who survived alone in the jungle for nearly three decades, unaware or disbelieving that the war had ended, before finally emerging in 1972 to become an unlikely celebrity in Japan.